uxcell 1/4 Inch Ceramic Bearing Balls, Si3N4 Silicon Nitride Ball G5 Precision 25pcs

Description:-These ceramic bearing balls are great for applications were there will be extreme rotation and a premium performance bearing ball is required to meet the demands.-Lighter and stronger than tungsten carbide, these silicon nitride balls are diamond polished, will not shatter or melt in the extreme conditions.-Higher hardness than chrome steel balls. Vickers hardness up to 1700HV.-Specially useful for casters, drawer slides, door locks and many other applications. Suitable for a range of purposes, some of the most common are listed below:-1/8" is often used for clusters and old English-style headsets-1/4" is often used for rear wheels and bottom brackets-3/16" is often used for front wheels-5/32" is often used for headsets with pressing cups Specification:Size: 1/4" (6.35mm)Precision: G5Material: Silicon Nitride (Si3N4)Package Content: 25 Piece

• 1/4" (6.35mm) in diameter
• Smooth surface, G5 precision grade balls, Self-lubricating
• Higher hardness and wear resistance than chrome steel balls
• Excellent corrosion resistance. Stable and Lightweight
• Package includes 25 piece balls